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initial draft
Signed-off-by: Christian Parpart <[email protected]>
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‎.clang-format‎

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---
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BasedOnStyle: Microsoft
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AccessModifierOffset: '-2'
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AlignAfterOpenBracket: Align
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AlignConsecutiveMacros: 'true'
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AlignConsecutiveDeclarations: 'false'
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AlignEscapedNewlines: Left
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AlignOperands: 'true'
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AlignTrailingComments: 'true'
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AllowAllArgumentsOnNextLine: 'true'
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AllowAllConstructorInitializersOnNextLine: 'true'
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AllowAllParametersOfDeclarationOnNextLine: 'true'
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AllowShortBlocksOnASingleLine: 'false'
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AllowShortCaseLabelsOnASingleLine: 'false'
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AllowShortFunctionsOnASingleLine: Empty
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AllowShortIfStatementsOnASingleLine: Never
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AllowShortLambdasOnASingleLine: Inline
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AllowShortLoopsOnASingleLine: 'false'
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AlwaysBreakAfterReturnType: None
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AlwaysBreakBeforeMultilineStrings: 'false'
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AlwaysBreakTemplateDeclarations: 'Yes'
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BinPackArguments: 'false'
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BinPackParameters: 'false'
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BreakBeforeBinaryOperators: NonAssignment
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BreakBeforeBraces: Custom
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BreakBeforeTernaryOperators: 'true'
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BreakConstructorInitializers: AfterColon
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BreakInheritanceList: AfterColon
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BreakStringLiterals: 'true'
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ColumnLimit: '120'
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CompactNamespaces: 'false'
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PackConstructorInitializers: Never
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ConstructorInitializerIndentWidth: '4'
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ContinuationIndentWidth: '4'
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Cpp11BracedListStyle: 'false'
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DerivePointerAlignment: 'false'
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FixNamespaceComments: 'true'
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IncludeBlocks: Regroup
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IndentCaseLabels: true
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IndentPPDirectives: BeforeHash
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IndentWidth: '4'
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IndentWrappedFunctionNames: 'false'
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Language: Cpp
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MaxEmptyLinesToKeep: '1'
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NamespaceIndentation: Inner
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PenaltyBreakAssignment: '0'
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PointerAlignment: Left
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ReflowComments: 'true'
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SortIncludes: 'true'
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SortUsingDeclarations: 'true'
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SpaceAfterCStyleCast: 'true'
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SpaceAfterLogicalNot: 'false'
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SpaceAfterTemplateKeyword: 'true'
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SpaceBeforeAssignmentOperators: 'true'
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SpaceBeforeCpp11BracedList: 'true'
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SpaceBeforeCtorInitializerColon: 'false'
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SpaceBeforeInheritanceColon: 'false'
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SpaceBeforeParens: ControlStatements
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SpaceBeforeRangeBasedForLoopColon: 'false'
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SpaceInEmptyParentheses: 'false'
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SpacesInAngles: 'false'
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SpacesInCStyleCastParentheses: 'false'
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SpacesInContainerLiterals: 'false'
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SpacesInParentheses: 'false'
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SpacesInSquareBrackets: 'false'
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Standard: Cpp11
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TabWidth: '4'
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UseTab: Never
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IncludeCategories:
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- Regex: '^".*"'
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Priority: 0
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- Regex: '^<(reflection-cpp)/'
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Priority: 10
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- Regex: '^<gsl/'
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Priority: 48
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- Regex: '^<catch2/'
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Priority: 70
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- Regex: '^<sys/'
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Priority: 80
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- Regex: '^<[[:alnum:]_]+>'
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Priority: 81
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- Regex: '<[[:alnum:]_]+\.h>'
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Priority: 82
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- Regex: '.*'
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Priority: 99

‎.clang-tidy‎

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---
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Checks: >-
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-*,
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bugprone-*,
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-bugprone-branch-clone,
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-bugprone-easily-swappable-parameters,
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-bugprone-exception-escape,
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-bugprone-implicit-widening-of-multiplication-result,
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-bugprone-reserved-identifier,
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-bugprone-suspicious-include,
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-bugprone-unchecked-optional-access,
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clang-analyzer-core.*,
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clang-analyzer-cplusplus.*,
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clang-analyzer-deadcode.*,
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clang-analyzer-nullability.*,
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clang-analyzer-optin.cplusplus.*,
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-clang-analyzer-optin.cplusplus.UninitializedObject,
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clang-analyzer-optin.performance.*,
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clang-analyzer-optin.portability.*,
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clang-analyzer-security.*,
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clang-analyzer-unix.*,
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clang-diagnostic-*,
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cppcoreguidelines-*,
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cppcoreguidelines-*,
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-cppcoreguidelines-avoid-c-arrays,
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-cppcoreguidelines-avoid-const-or-ref-data-members,
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-cppcoreguidelines-avoid-do-while,
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-cppcoreguidelines-avoid-magic-numbers,
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-cppcoreguidelines-avoid-non-const-global-variables,
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-cppcoreguidelines-macro-usage,
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-cppcoreguidelines-no-malloc,
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-cppcoreguidelines-non-private-member-variables-in-classes,
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-cppcoreguidelines-owning-memory,
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-cppcoreguidelines-prefer-member-initializer,
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-cppcoreguidelines-pro-bounds-array-to-pointer-decay,
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-cppcoreguidelines-pro-bounds-constant-array-index,
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-cppcoreguidelines-pro-bounds-pointer-arithmetic,
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-cppcoreguidelines-pro-type-const-cast,
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-cppcoreguidelines-pro-type-cstyle-cast,
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-cppcoreguidelines-pro-type-reinterpret-cast,
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-cppcoreguidelines-pro-type-static-cast-downcast,
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-cppcoreguidelines-pro-type-union-access,
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-cppcoreguidelines-pro-type-vararg,
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-cppcoreguidelines-special-member-functions,
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modernize-*,
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-modernize-avoid-bind,
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-modernize-avoid-c-arrays,
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-modernize-return-braced-init-list,
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-modernize-use-bool-literals,
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-modernize-use-trailing-return-type,
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performance-*,
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-performance-no-int-to-ptr,
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readability-*,
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-readability-avoid-unconditional-preprocessor-if,
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-readability-braces-around-statements,
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-readability-container-contains,
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-readability-else-after-return,
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-readability-function-cognitive-complexity,
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-readability-identifier-length,
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-readability-implicit-bool-conversion,
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-readability-magic-numbers,
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-readability-named-parameter,
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-readability-redundant-access-specifiers,
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-readability-simplify-boolean-expr,
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-readability-uppercase-literal-suffix,
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-readability-use-anyofallof,
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misc-const-correctness,
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WarningsAsErrors: >-
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modernize-use-nullptr,
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UseColor: true
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HeaderFilterRegex: 'src/'
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FormatStyle: none
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CheckOptions:
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- key: bugprone-easily-swappable-parameters.MinimumLength
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value: '3'
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- key: cert-dcl16-c.NewSuffixes
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value: 'L;LL;LU;LLU'
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- key: cert-oop54-cpp.WarnOnlyIfThisHasSuspiciousField
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value: '0'
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- key: cppcoreguidelines-explicit-virtual-functions.IgnoreDestructors
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value: '1'
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- key: cppcoreguidelines-non-private-member-variables-in-classes.IgnoreClassesWithAllMemberVariablesBeingPublic
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value: '1'
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- key: google-readability-braces-around-statements.ShortStatementLines
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value: '1'
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- key: google-readability-function-size.StatementThreshold
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value: '800'
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- key: google-readability-namespace-comments.ShortNamespaceLines
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value: '10'
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- key: google-readability-namespace-comments.SpacesBeforeComments
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value: '2'
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- key: modernize-loop-convert.MaxCopySize
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value: '16'
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- key: modernize-loop-convert.MinConfidence
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value: reasonable
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- key: modernize-loop-convert.NamingStyle
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value: CamelCase
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- key: modernize-pass-by-value.IncludeStyle
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value: llvm
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- key: modernize-replace-auto-ptr.IncludeStyle
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value: llvm
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- key: modernize-use-nullptr.NullMacros
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value: 'NULL'
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- key: modernize-use-default-member-init.UseAssignment
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value: '1'

‎.gitignore‎

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compile_commands.json
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.cache/
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out/

‎CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.10)
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project(reflection-cpp VERSION 1.4.2 LANGUAGES CXX)
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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include(GNUInstallDirs)
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include(ThirdParties)
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include(ClangTidy)
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include(PedanticCompiler)
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set(boxed_cpp_HEADERS
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${PROJECT_SOURCE_DIR}/include/reflection-cpp/boxed.hpp
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)
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add_library(reflection-cpp INTERFACE)
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add_library(reflection-cpp::reflection-cpp ALIAS reflection-cpp)
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target_compile_features(reflection-cpp INTERFACE cxx_std_20)
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target_include_directories(reflection-cpp INTERFACE
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$<BUILD_INTERFACE:${${PROJECT_NAME}_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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# Generate the version, config and target files
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include(CMakePackageConfigHelpers)
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write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/reflection-cpp-config-version.cmake
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VERSION ${PROJECT_VERSION}
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COMPATIBILITY SameMajorVersion
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)
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configure_package_config_file(reflection-cpp-config.cmake.in
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${CMAKE_CURRENT_BINARY_DIR}/reflection-cpp-config.cmake
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INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/reflection-cpp
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)
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install(FILES ${boxed_cpp_HEADERS}
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/reflection-cpp
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)
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install(TARGETS reflection-cpp
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EXPORT reflection-cpp-targets
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DESTINATION ${CMAKE_INSTALL_LIBDIR}
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)
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/reflection-cpp-config.cmake
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${CMAKE_CURRENT_BINARY_DIR}/reflection-cpp-config-version.cmake
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/reflection-cpp
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)
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install(EXPORT reflection-cpp-targets
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/reflection-cpp
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NAMESPACE reflection-cpp::
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)
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# ---------------------------------------------------------------------------
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# unit tests
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option(BOXED_TESTING "Enables building of unittests for reflection-cpp [default: ON]" ON)
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if(BOXED_TESTING)
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find_package(Catch2 3.4.0 QUIET)
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if(NOT Catch2_FOUND)
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ThirdPartiesAdd_Catch2()
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endif()
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enable_testing()
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add_executable(test-reflection-cpp
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test-reflection-cpp.cpp
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)
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target_compile_features(test-reflection-cpp INTERFACE cxx_std_20)
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target_link_libraries(test-reflection-cpp reflection-cpp Catch2::Catch2WithMain)
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add_test(test-reflection-cpp ./test-reflection-cpp)
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endif()
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message(STATUS "[reflection-cpp] Compile unit tests: ${BOXED_TESTING}")

‎CMakePresets.json‎

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{
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"version": 6,
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"configurePresets": [
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{
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"name": "common",
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"hidden": true,
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"binaryDir": "${sourceDir}/out/build/${presetName}",
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"installDir": "${sourceDir}/out/install/${presetName}",
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"generator": "Ninja",
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"cacheVariables": {
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"CMAKE_INSTALL_PREFIX": "${sourceDir}/out/install/${presetName}",
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"CMAKE_VERBOSE_MAKEFILE": "OFF"
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}
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},
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{
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"name": "windows-common",
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"hidden": true,
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"inherits": ["common"],
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"toolchainFile": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
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"condition": {
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"type": "equals",
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"lhs": "${hostSystemName}",
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"rhs": "Windows"
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},
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"cacheVariables": {
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"CMAKE_SYSTEM_VERSION": "10.0"
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}
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},
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{
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"name": "windows-cl-common",
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"hidden": true,
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"inherits": ["windows-common"],
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"generator": "Visual Studio 17 2022",
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"cacheVariables": {
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"CMAKE_CXX_COMPILER": "cl"
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}
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},
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{ "name": "windows-cl-debug", "inherits": ["windows-cl-common"], "displayName": "Windows - MSVC CL - Debug" },
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{ "name": "windows-cl-release", "inherits": ["windows-cl-common"], "displayName": "Windows - MSVC CL - Release" },
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{
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"name": "windows-clangcl-common",
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"hidden": true,
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"inherits": ["windows-common"],
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"cacheVariables": {
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"CMAKE_CXX_COMPILER": "clang-cl",
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"CMAKE_C_COMPILER": "clang-cl"
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}
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},
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{ "name": "windows-clangcl-debug", "inherits": ["windows-clangcl-common"], "displayName": "Windows - MSVC ClangCL - Debug", "cacheVariables": { "CMAKE_BUILD_TYPE": "Debug" } },
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{ "name": "windows-clangcl-release","inherits": ["windows-clangcl-common"], "displayName": "Windows - MSVC ClangCL - Release", "cacheVariables": { "CMAKE_BUILD_TYPE": "Release" } },
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{ "name": "linux-common", "hidden": true, "inherits": ["common"], "condition": { "type": "equals", "lhs": "${hostSystemName}", "rhs": "Linux" } },
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{ "name": "macos-common", "hidden": true, "inherits": ["common"], "condition": { "lhs": "${hostSystemName}", "type": "equals", "rhs": "Darwin" } },
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{ "name": "debug", "hidden": true, "cacheVariables": { "CMAKE_BUILD_TYPE": "Debug" } },
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{ "name": "release", "hidden": true, "cacheVariables": { "CMAKE_BUILD_TYPE": "RelWithDebInfo" } },
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{ "name": "pedantic", "hidden": true, "cacheVariables": { "PEDANTIC_COMPILER": "ON", "PEDANTIC_COMPILER_WERROR": "ON" } },
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{ "name": "linux-common-release", "hidden": true, "inherits": "release", "cacheVariables": { "CMAKE_INSTALL_PREFIX": "/usr/local" } },
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{ "name": "linux-clang", "hidden": true, "inherits": "linux-common", "cacheVariables": { "CMAKE_CXX_COMPILER": "clang++" } },
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{ "name": "linux-gcc", "hidden": true, "inherits": "linux-common", "cacheVariables": { "CMAKE_CXX_COMPILER": "g++" } },
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{ "name": "linux-clang-release", "displayName": "Linux (Clang) Release", "inherits": ["linux-clang", "linux-common-release"] },
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{ "name": "linux-clang-debug", "displayName": "Linux (Clang) Debug", "inherits": ["linux-clang", "debug"] },
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{ "name": "linux-gcc-release", "displayName": "Linux (GCC) Release", "inherits": ["linux-gcc", "linux-common-release"] },
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{ "name": "linux-gcc-debug", "displayName": "Linux (GCC) Debug", "inherits": ["linux-gcc", "debug", "pedantic"] },
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{ "name": "macos-release", "displayName": "MacOS Release", "inherits": ["macos-common", "release"] },
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{ "name": "macos-debug", "displayName": "MacOS Debug", "inherits": ["macos-common", "debug"] }
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],
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"buildPresets": [
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{ "name": "windows-cl-debug", "displayName": "Windows - MSVC CL - Debug", "configurePreset": "windows-cl-debug", "configuration": "Debug" },
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{ "name": "windows-cl-release", "displayName": "Windows - MSVC CL - Release", "configurePreset": "windows-cl-release", "configuration": "Release" },
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{ "name": "windows-clangcl-debug", "displayName": "Windows - MSVC ClangCL - Debug", "configurePreset": "windows-clangcl-debug", "configuration": "Debug" },
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{ "name": "windows-clangcl-release", "displayName": "Windows - MSVC ClangCL - Release", "configurePreset": "windows-clangcl-release", "configuration": "Release" },
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{ "name": "linux-clang-debug", "displayName": "Linux - Clang - Debug", "configurePreset": "linux-clang-debug" },
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{ "name": "linux-clang-release", "displayName": "Linux - Clang - RelWithDebInfo", "configurePreset": "linux-clang-release" },
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{ "name": "linux-gcc-debug", "displayName": "Linux - GCC - Debug", "configurePreset": "linux-gcc-debug" },
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{ "name": "linux-gcc-release", "displayName": "Linux - GCC - RelWithDebInfo", "configurePreset": "linux-gcc-release" },
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{ "name": "macos-debug", "displayName": "MacOS - Debug", "configurePreset": "macos-debug" },
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{ "name": "macos-release", "displayName": "MacOS - RelWithDebInfo", "configurePreset": "macos-release" }
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],
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"testPresets": [
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{ "name": "windows-cl-debug", "configurePreset": "windows-cl-debug", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "windows-cl-release", "configurePreset": "windows-cl-release", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "windows-clangcl-debug", "configurePreset": "windows-clangcl-debug", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "windows-clangcl-release", "configurePreset": "windows-clangcl-release", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "linux-gcc-debug", "configurePreset": "linux-gcc-debug", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "linux-gcc-release", "configurePreset": "linux-gcc-release", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "linux-clang-debug", "configurePreset": "linux-clang-debug", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } },
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{ "name": "linux-clang-release", "configurePreset": "linux-clang-release", "output": {"outputOnFailure": true}, "execution": { "noTestsAction": "error", "stopOnFailure": true } }
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]
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}

‎README.md‎

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# Reflection C++
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This is a C++ static reflection library.
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## Goals
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- Trivial to integrate into existing codebases (no code generation, no macros, no build system changes)
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- Minimal to zero runtime overhead
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- Works with C++20 and later
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- Prepared to integrate C++26 reflections when they are available

‎cmake/ClangTidy.cmake‎

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option(ENABLE_TIDY "Enable clang-tidy [default: OFF]" OFF)
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if(ENABLE_TIDY)
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find_program(CLANG_TIDY_EXE
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NAMES clang-tidy-9 clang-tidy-8 clang-tidy-7 clang-tidy
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DOC "Path to clang-tidy executable")
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if(NOT CLANG_TIDY_EXE)
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message(STATUS "[clang-tidy] Not found.")
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else()
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message(STATUS "[clang-tidy] found: ${CLANG_TIDY_EXE}")
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set(CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_EXE}")
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endif()
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else()
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message(STATUS "[clang-tidy] Disabled.")
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endif()

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